Nonstop flight route between Gaithersburg, Maryland, United States and Honolulu, Hawaii, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from GAI to HNL:
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- About this route
- GAI Airport Information
- HNL Airport Information
- Facts about GAI
- Facts about HNL
- Map of Nearest Airports to GAI
- List of Nearest Airports to GAI
- Map of Furthest Airports from GAI
- List of Furthest Airports from GAI
- Map of Nearest Airports to HNL
- List of Nearest Airports to HNL
- Map of Furthest Airports from HNL
- List of Furthest Airports from HNL
About this route:
A direct, nonstop flight between Montgomery County Airpark (GAI), Gaithersburg, Maryland, United States and Honolulu International Airport (HNL), Honolulu, Hawaii, United States would travel a Great Circle distance of 4,821 miles (or 7,759 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Montgomery County Airpark and Honolulu International Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Montgomery County Airpark and Honolulu International Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | GAI / KGAI | 
| Airport Name: | Montgomery County Airpark | 
| Location: | Gaithersburg, Maryland, United States | 
| GPS Coordinates: | 39°10'5"N by 77°9'57"W | 
| Operator/Owner: | Montgomery County Revenue Authority | 
| Airport Type: | Public | 
| Elevation: | 539 feet (164 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from GAI | 
| More Information: | GAI Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | HNL / PHNL | 
| Airport Name: | Honolulu International Airport | 
| Location: | Honolulu, Hawaii, United States | 
| GPS Coordinates: | 21°19'6"N by 157°55'21"W | 
| Area Served: | Honolulu, Island of O'ahu | 
| Operator/Owner: | State of Hawaii | 
| Airport Type: | Public / Military | 
| Elevation: | 13 feet (4 meters) | 
| # of Runways: | 6 | 
| View all routes: | Routes from HNL | 
| More Information: | HNL Maps & Info | 
Facts about Montgomery County Airpark (GAI):
- The closest airport to Montgomery County Airpark (GAI) is College Park Airport (CGS), which is located only 18 miles (30 kilometers) SE of GAI.
- The furthest airport from Montgomery County Airpark (GAI) is Margaret River Airport (MGV), which is located 11,667 miles (18,776 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Montgomery County Airpark's relatively low elevation of 539 feet, planes can take off or land at Montgomery County Airpark at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Montgomery County Airpark (GAI) currently has only 1 runway.
Facts about Honolulu International Airport (HNL):
- Because of Honolulu International Airport's relatively low elevation of 13 feet, planes can take off or land at Honolulu International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- By 2012 Hawaiian Airlines was re-establishing Honolulu Airport as a connecting hub between the United States mainland and the Asia-Pacific region.
- The closest airport to Honolulu International Airport (HNL) is Hickam Field (HIK), which is located only 0 mile (0 kilometer) N of HNL.
- The furthest airport from Honolulu International Airport (HNL) is Ghanzi Airport (GNZ), which is nearly antipodal to Honolulu International Airport (meaning Honolulu International Airport is almost on the exact opposite side of the Earth from Ghanzi Airport), and is located 12,399 miles (19,955 kilometers) away in Ghanzi, Botswana.
- Pan Am used Honolulu as a transpacific hub for many years, initially as a connecting point between the West Coast and Polynesia in 1946, followed by service to East Asia through Midway Island and Wake Island from 1947.
- HNL opened in March 1927 as John Rodgers Airport, named after World War I naval officer John Rodgers.
- Honolulu International Airport has three terminal buildings.
- Honolulu International Airport (HNL) has 6 runways.




